Cloudflare is a service (content-provider) that allows speeding up of the work of the Magento online shop. It helps to protect your store from the threat of a variety of harmful bots, blocking them before they “hit” the server (it has Built-in Security). This prevents the server from losing traffic and resources which in turn leads to speed improvement. Cloudflare uses CDN technology, a geographically distributed network infrastructure that allows you to distribute content to the end-users on the Internet.